The following table describes the results of roadworthiness tests of Ford Focus cars that are three years old (based on data from the Department of Transportation). The random variable x represents the number of cars that failed among six that were tested for roadworthiness. Is the probability of getting three or more cars that fail among six cars tested significant, determined by a cutoff value of 0.05? x
P(x)
0
0.377
1
0.399
2
0.176
3
0.041
4
0.005
5
0
6
0
Yes
No

answer: for each 3 girls there is 2 boys . 3: 2

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percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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step-by-step explanation: